di·​a·​gram | \ ˈdī-ə-ˌgram How to pronounce diagram (audio) \

Definition of diagram

 (Entry 1 of 2)

1 : a graphic design that explains rather than represents especially : a drawing that shows arrangement and relations (as of parts)
2 : a line drawing made for mathematical or scientific purposes


diagrammed or diagramed\ ˈdī-​ə-​ˌgramd How to pronounce diagram (audio) \; diagramming or diagraming\ ˈdī-​ə-​ˌgra-​miŋ How to pronounce diagram (audio) \

Definition of diagram (Entry 2 of 2)

transitive verb

: to represent by or put into the form of a diagram diagram a sentence diagram a football play

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Other Words from diagram


diagrammable \ ˈdī-​ə-​ˌgra-​mə-​bəl How to pronounce diagram (audio) \ adjective
diagrammatic \ ˌdī-​ə-​grə-​ˈma-​tik How to pronounce diagram (audio) \ or less commonly diagrammatical \ ˌdī-​ə-​grə-​ˈma-​ti-​kəl How to pronounce diagram (audio) \ adjective
diagrammatically \ ˌdī-​ə-​grə-​ˈma-​ti-​k(ə-​)lē How to pronounce diagram (audio) \ adverb

Synonyms for diagram

Synonyms: Noun

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Examples of diagram in a Sentence

Noun a diagram of the nervous system This diagram shows how the clock operates. Verb The coach diagrammed the new play on the blackboard. The students were required to diagram a sentence.
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Recent Examples on the Web: Noun Here is a diagram of security as a business process. Avihai Ben-yossef, Forbes, 5 Oct. 2021 That dinner party stands as the paradigmatic diagram of how Jeffrey Epstein succeeded in rehabbing his reputation in New York, slithering out from under his Florida conviction. Guy Martin, Forbes, 1 Oct. 2021 On the opposite wall, two-top pub tables are lined up beneath a large diagram of the five oyster species. Matt Wake | Mwake@al.com, al, 28 Aug. 2021 On the front of the artifact is an inscription showing a diagram of a field. Caroline Delbert, Popular Mechanics, 16 Aug. 2021 In aerial photos and in Radević’s beautifully rendered plans for the complex, the network of rings looks like a diagram of a molecule. Sophie Pinkham, The New York Review of Books, 23 Sep. 2021 The work is set on a platform with a diagram of all of Folkestone’s dancefloors and has a soundtrack that is certain to entice viewers to dance to the beat. Joanne Shurvell, Forbes, 3 Sep. 2021 In the diagram, line segment OP is 1, and the hypotenuse OQ is now 4.5. Quanta Magazine, 25 Aug. 2021 So here is a diagram of a rotating object with two equal masses evenly spaced. Rhett Allain, Wired, 10 Aug. 2021 Recent Examples on the Web: Verb This meant that production sound mixer David Wyman had to diagram a number of different communication techniques to record the dialogue and allow the actors to hear any off-camera lines no matter where they were performed on set. Daron James, Los Angeles Times, 31 Mar. 2021 Better than that, the coaches have the ability to place an inset on the screen diagramming plays Deer Park will want to employ next season. Robert Avery, Houston Chronicle, 16 Apr. 2020 His stiff-necked sense of authenticity and his self-confidence in his salesman’s ability to close the deal make his every burst of oratory a daunting challenge to those who diagram sentences. Walter Shapiro, The New Republic, 6 Jan. 2020 Drawings at the time, produced as part of the city’s environmental review process, diagramed the heart of the Western Yard as a greensward with a lawn passing beneath the High Line and spilling to 12th Avenue at West 30th Street. Michael Kimmelman, New York Times, 10 Jan. 2020 Even after squandering a 15-point lead and allowing the Pistons to surge in front Tuesday night, the brief review allowed the Cavs to diagram a play. Chris Fedor, cleveland, 8 Jan. 2020 And don’t worry, the set comes complete with a handy how-to diagram for any facial tool newcomers. Tanisha Pina, NBC News, 7 Dec. 2019 Position groups did their own things, with safeties coach Joe Harasymiak asking players to diagram Xs and Os on the white big board. Andy Greder, Twin Cities, 29 Nov. 2019 Each layer of the neural network makes multiple, parallel connections between certain words while ignoring others — akin to a student diagramming a sentence in elementary school. Quanta Magazine, 17 Oct. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'diagram.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of diagram


1619, in the meaning defined at sense 1


1785, in the meaning defined above

History and Etymology for diagram


Greek diagramma, from diagraphein to mark out by lines, from dia- + graphein to write — more at carve

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Time Traveler for diagram

Time Traveler

The first known use of diagram was in 1619

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Dictionary Entries Near diagram



diagram factor

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Statistics for diagram

Last Updated

25 Oct 2021

Cite this Entry

“Diagram.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diagram. Accessed 26 Oct. 2021.

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More Definitions for diagram



English Language Learners Definition of diagram

 (Entry 1 of 2)

: a drawing that explains or shows the parts of something



English Language Learners Definition of diagram (Entry 2 of 2)

: to show or explain (something) in a diagram


di·​a·​gram | \ ˈdī-ə-ˌgram How to pronounce diagram (audio) \

Kids Definition of diagram

 (Entry 1 of 2)

: a drawing that explains or shows parts of something


diagrammed or diagramed\ ˈdī-​ə-​ˌgramd \; diagramming or diagraming\ -​ˌgra-​miŋ \

Kids Definition of diagram (Entry 2 of 2)

: to show or explain in a drawing The coach diagrammed the new play.

More from Merriam-Webster on diagram

Nglish: Translation of diagram for Spanish Speakers

Britannica English: Translation of diagram for Arabic Speakers


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